India is the third-largest energy consumer in the world, making renewable energy paramount for its economy and environment. Already, the country’s ambitious plans are to achieve net-zero carbon emissions by 2070 and will generate significant renewable innovation over the coming years. Below are some of Chennai’s top energy companies already working to slash carbon emissions.
Top Renewable Energy Companies in Chennai to Know
- Loom Solar
- ReGen Powertech
- Orient Green Power
- SolarTown
- Carbon Minus
Top Renewable Energy Companies in Chennai
Founded: 2006
Energy Services: Wind Turbine Manufacturing
What it does: ReGen Powertech manufactures wind turbines for utility-scale renewable energy projects. Its turbine portfolio includes models in the megawatt range that convert wind energy into electricity for connection to the power grid. The company’s work spans wind-turbine engineering, manufacturing and the technical systems required to deploy and maintain wind power equipment.
Founded: 2006
Energy Services: Wind and Solar Power Generation
What it does: Orient Green Power develops and operates renewable power projects, with wind farms making up a substantial portion of its generation portfolio. The company has also expanded into solar power as part of its broader renewable-energy operations, generating electricity for use in domestic markets and other applications. Its business is centered on owning and operating power-generation assets rather than solely developing projects for other companies.Orient Green Power is one of India’s largest renewable energy producers. To date, the company generates over 400 MW of wind energy. It operates a portfolio of energy projects in regions like Gujarat and Karnataka while expanding internationally to Croatia.
Founded: 2019
Energy Services: Wind, Solar and Hybrid Project Development
What it does: Everrenew manages the development of wind, solar and hybrid renewable-energy projects, starting with work such as site assessment, land acquisition and permitting. When a project moves forward, the company handles areas such as engineering, logistics and commissioning before taking on asset-management responsibilities for operating projects. Everrenew’s work on wind-solar hybrid facilities is focused on combining the two generation sources within the same renewable-energy project.
Founded: 2002
Energy Services: Solar System Design, Installation and Maintenance
What it does: Fenice Energy develops and installs solar power systems for customers looking to generate electricity from renewable sources. Its work covers residential, commercial and industrial projects, with services extending from system design and project execution through installation and ongoing maintenance.
Founded: 202
Energy Services: Sodium-Ion Battery Development and Testing
What it does: Aatral ESP develops sodium-ion batteries as an alternative to lithium-based battery technology. Its work uses NaSICON cathode materials and solid or hybrid electrolytes, with battery cells and storage systems designed for uses such as electric mobility, backup power and industrial energy storage. The company also provides battery testing services, including electrode preparation, cell production and electrochemical testing.
Founded: 2018
Energy Services: Solar Panel, Inverter and Storage Manufacturing
What it does: Loom Solar manufactures solar panels, hybrid solar inverters and lithium battery energy storage systems for residential and commercial customers in India. Its products cover the main components of a solar installation, from panels that generate electricity to batteries that store it for later use. The company also sells and supports complete solar systems, with products carrying certifications and approvals including those from the Bureau of Indian Standards and the Ministry of New and Renewable Energy.
Founded: 2024
Energy Services: Long-Duration Zinc-Air Battery Systems
What it does: Sthyr Energy develops zinc-air battery systems for storing renewable electricity over long periods. Its system uses a zinc regeneration Unit to convert zinc oxide into metallic zinc during charging, then uses zinc plates to produce electricity when the stored power is needed. Sthyr Energy’s approach is aimed at applications where solar or wind power needs to remain available beyond the hours or days when it was generated, including grid storage and backup power.
Founded: 2024
Energy Services: Solar Engineering, Procurement and Construction
What it does: RP Solar is a solar engineering, procurement and construction company that delivers photovoltaic projects. Its projects include solar installations for homes, commercial properties, industrial facilities and institutions, with the company also handling civil, mechanical and electrical engineering work.
Founded: 2013
Energy Services: Solar Panel and Inverter Solutions
What it does: SolarTown develops solar photovoltaic panels and inverters for residential and commercial customers. Its equipment is designed to generate electricity from sunlight and convert that electricity for use within a building or electrical system. Beyond selling solar hardware, the company provides educational resources that explain solar technology and help customers understand the equipment involved in adopting solar power.
Founded: 2021
Energy Services: Rooftop Solar Solutions and Carbon Offsetting
What it does: Carbon Minus provides rooftop solar installation, commercial solar solutions and plant erection and commissioning services across India. The company handles the complete solar transition process — from permits and subsidy assistance to installation and maintenance — for residential and industrial clients. It also offers carbon offset and trading services.
